Home · FSC 5310 Nuts And Washers · NSN 5310-00-964-6781

NSN 5310-00-964-6781 — Nut,Self-Locking,Extended Washer

NIIN 00-964-6781 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 14 government buys since 2019

The government has bought this item about every 2 months (irregular, gaps vary ±183%). Last buy Feb 19, 2026. The gaps are too uneven to put a window on the next one. 1 solicitation is open right now.

How well this works: for irregular items, "next buy about one typical gap after the last, give or take 152 days" caught the actual next buy 31% of the time across 21,749 past buys, against 24% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.

NSN 5310-00-964-6781 is the national stock number for a nut,self-locking,extended washer in federal supply class 5310 (Nuts And Washers). It cross-references to 15 manufacturer part numbers from 14 CAGE codes, including General Electric Company, Sps Technologies, LLC, Bristol Industries, LLC; the primary is 119FW428. The unit of issue is EA and the FLIS list price is $8.64.

The U.S. government has bought this item 16 times on record, 8 of them in the last 24 months, most recently on February 19, 2026 at $3.66 each from Noble Supply & Logistics, LLC. The median unit price paid over 36 months is $6.31. 2 solicitations are open right now, the soonest due October 6, 2026 for 6,746 EA. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.

15

part numbers from 14 CAGEs

2

open solicitations, all agencies

8

government buys in 24 months · median $6.31

0

sellers with confirmed stock

Watch NSN 5310-00-964-6781: an email the morning the government solicits or buys it, or an AD names it. Free.
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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part numberCAGEManufacturerReferenceVariation
R399P207482General Electric Company1 · Design control2 · Fully interchangeable
119FW42856878Sps Technologies, LLC3 · Design control (vendor)2 · Fully interchangeable
BH00191-427238Bristol Industries, LLC3 · Design control (vendor)2 · Fully interchangeable
R399P292215Howmet Global Fastening Systems Inc Div Torrance Operations3 · Design control (vendor)2 · Fully interchangeable
SA4993C-42852828Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems3 · Design control (vendor)9 · Reference only
H19517-415653Howmet Global Fastening Systems Inc5 · Secondary reference9 · Reference only
H19517-4R1120Satair A/S5 · Secondary reference2 · Fully interchangeable
R399P251792Apollo Aerospace5 · Secondary reference1 · Not fully interchangeable
R399P25R793Howmet Global Fastening Systems Inc5 · Secondary reference9 · Reference only
R399P227238Bristol Industries, LLC5 · Secondary reference2 · Fully interchangeable
R399P215653Howmet Global Fastening Systems Inc5 · Secondary reference2 · Fully interchangeable
R399P2A07482General Electric Company5 · Secondary reference9 · Reference only
R399P2C07482General Electric Company5 · Secondary reference9 · Reference only
R399P2H07482General Electric Company5 · Secondary reference9 · Reference only
R399P2J07482General Electric Company5 · Secondary reference9 · Reference only
R399P2M8K112Freundlich Supply Company, Inc.5 · Secondary reference9 · Reference only
R399P2M07482General Electric Company5 · Secondary reference9 · Reference only
R399P2S07482General Electric Company5 · Secondary reference9 · Reference only
SL4905-42852828Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems5 · Secondary reference9 · Reference only
VN450B04806950Howmet Global Fastening Systems Inc5 · Secondary reference9 · Reference only
VN450B04892215Howmet Global Fastening Systems Inc Div Torrance Operations5 · Secondary reference9 · Reference only
VN450B048C4293Fairchild Fasteners Europe - Vsd Gmbh5 · Secondary reference2 · Fully interchangeable
Z1855-04872962Harvard Industries Inc5 · Secondary reference9 · Reference only
Z4063-04872962Harvard Industries Inc5 · Secondary reference9 · Reference only
Z1855-048019L2Esna, LLCC1 · Not fully interchangeable
Z4063-048019L2Esna, LLCC1 · Not fully interchangeable

Government demand

Open DLA RFQs (DIBBS)

Open notices, other agencies (SAM.gov)

  • Defense Logistics Agency · Dla Aviation · NUT,SELF-LOCKING,EXTEN · due Oct 6, 2026 · Combined Synopsis/Solicitation

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Feb 19, 2026Noble Supply & Logistics, LLC 1HEN92,483$3.66DlaSPE4A526FAYQ1
Oct 19, 2025Noble Supply & Logistics, LLC 1HEN91,375$7.57DlaSPE4A526FA93U
Sep 11, 2025Noble Supply & Logistics, LLC 1HEN92,871$7.57DlaSPE4A525FBM5V
Jul 17, 2025Noble Supply & Logistics, LLC 1HEN91,825$7.57DlaSPE4A525FB99Z
May 16, 2025Noble Supply & Logistics, LLC 1HEN9850$6.31DlaSPE4A525FAKHS
Mar 23, 2025Noble Supply & Logistics, LLC 1HEN997$6.31DlaSPE4A525FAU5R
Jan 16, 2025Noble Supply & Logistics, LLC 1HEN9225$6.31DlaSPE4A525FA6K3
Nov 14, 2024Noble Supply & Logistics, LLC 1HEN9350$6.31DlaSPE4A625FAT94
Jul 18, 2024Noble Supply & Logistics, LLC 1HEN91,050$6.31DlaSPE4A624FC89U
Mar 17, 2024Noble Supply & Logistics, LLC 1HEN9575$5.57DlaSPE4A624FB2GE
Oct 13, 2023Noble Supply & Logistics, LLC 1HEN92,345$5.57DlaSPE4A624FA2NR
Apr 21, 2023Adept Fasteners Inc 1V0G68,061$1.50DlaSPE4A623V167P
Mar 27, 2023Adept Fasteners Inc 1V0G68,061$1.50DlaSPE4A623F021X
Jul 17, 2019Statz Corp 3WGD124,816$1.48DlaSPE5E319P1753
Jul 6, 2009Apollo Aerospace 5179219,713$1.63DlaSPM5AZ09D00030571
Jul 3, 2006Apollo Aerospace 5179213,546$0.97DlaSPM50003D00670069

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 16 buys on record in total.

Sellers with confirmed stock

No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 119FW428.

Request 119FW428

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Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price
$8.64
Unit of issue
EA
Acquisition advice
Z — Insurance item
Source of supply
SMS
Effective
Oct 1, 2025

Item characteristics

Thread Class
3B
Thread Direction
RIGHT-HAND
Locking Feature
PREVAILING TORQUE ALL METAL DESIGN
Washer Outside Diameter
INCHES MAXIMUM 0.443
Overall Height
INCHES MINIMUM 0.396 AND INCHES MAXIMUM 0.411
Washer Thickness
INCHES MINIMUM 0.060 AND INCHES MAXIMUM 0.080
Width Across Flats
INCHES MINIMUM 0.369 AND INCHES MAXIMUM 0.376
Temp Rating
FAHRENHEIT NOMINAL 1200.0
Thread Series
UNIFIED NATIONAL JOINT FINE (UNJF)
Thread Quantity Per Inch
28
Nominal Thread Size
INCHES 0.250
Material
OVERALL IRON ALLOY 660
Material Document And Classification
OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S 5732 OR ASSN STD SINGLE MATERIAL RESPONSE A-S 5737
Precious Material
SILVER
Surface Treatment
OVERALL SILVER
Surface Treatment Document And Classification
OVERALL ASSN STD SINGLE TREATMENT RESPONSE A-S 2410

Related stock numbers

Other NSNs filed under the same part numbers.

About this page

An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.

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